Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162385 | Preparation of hard foams containing urethane groups or containing urethane and isocyanurate groups | Uwe Hartwig, Eckhard Ropte | 1992-11-10 |
| 4277571 | Urethane group-containing polyisocyanurate foam based on naphthenic acid-hydroxylamine adduct | Georg Falkenstein | 1981-07-07 |